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RV Investigator Voyage IN2020_V08 SBP120 Sub-bottom Profiler Data

Created 12/10/2024

Updated 12/10/2024

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This record describes sub bottom profiler data collected from the Marine National Facility (MNF) RV Investigator Voyage IN2020_V08, titled "SOLACE - Southern Ocean Large Areal Carbon Export: quantifying carbon sequestration in subpolar and polar waters." The voyage took place between December 5, 2020 and January 16, 2021 departing from Hobart (TAS) and arriving in Hobart (TAS).

The Kongsberg SBP120 (sub bottom profiler) was used to acquire data containing the specular reflections at different sediment interfaces below the seafloor. The SBP120 provides a 3° by 3° angular resolution.

The echosounder's frequency sweep range is from 2.5 to 7 kHz. The SBP120 was logged sporadically for the extent of the voyage.

Data are stored in .raw (1141 files 2.5 GB) raw and .seg (1140 files 2.5 GB) segy formats at CSIRO.

The segy format data had a real time processing stream applied, which applies gain, a gain correction, matched filter with replica shaping, an attribute calculation for instantaneous amplitude and time variable gain.

Additional information regarding this dataset is contained in the GSM data acquisition and processing report. Additional data products may be available on request

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Additional Info

Field Value
Title RV Investigator Voyage IN2020_V08 SBP120 Sub-bottom Profiler Data
Language eng
Licence Not Specified
Landing Page https://devweb.dga.links.com.au/data/dataset/b11f4de7-e1d0-4de1-8b7e-5f667484e299
Contact Point
Atlantic Oceanographic and Meteorological Laboratory (AOML)
data-requests-hf@csiro.au
Reference Period 03/03/2021
Geospatial Coverage
Map data © OpenStreetMap contributors
Data Portal Data.gov.au